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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10679017 B1

PDFFull Text
Date of Patent:
Jun. 09, 2020

Filed:

Apr. 11, 2016

Semiconductor device and system thereof

Applicant:

Semiconductor Energy Laboratory Co., Ltd., Atsugi-shi, Kanagawa-ken, JP;

Inventors:

Tomokazu Yokoi, Kanagawa, JP;

Masayuki Sakakura, Kanagawa, JP;

Assignee:

Semiconductor Energy Laboratory Co., Ltd., Atsugi-shi, Kanagawa-ken, JP;

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Christopher Stanford

Int. Cl.
CPC ...
G06K 19/07 (2006.01); G06K 7/01 (2006.01); B42D 25/313 (2014.01); H01L 21/822 (2006.01); G06K 19/073 (2006.01); H01L 21/8234 (2006.01); B42D 25/305 (2014.01); G06F 21/32 (2013.01); G06F 21/72 (2013.01); G06K 19/077 (2006.01); B42D 25/29 (2014.01); G06K 9/00 (2006.01); H01L 29/786 (2006.01); H01L 27/12 (2006.01); H01L 27/088 (2006.01); H01L 27/06 (2006.01); H01L 21/8258 (2006.01);
U.S. Cl.
CPC ...
G06K 7/01 (2013.01); B42D 25/29 (2014.10); B42D 25/305 (2014.10); B42D 25/313 (2014.10); G06F 21/32 (2013.01); G06F 21/72 (2013.01); G06K 9/00087 (2013.01); G06K 9/00885 (2013.01); G06K 19/0701 (2013.01); G06K 19/073 (2013.01); G06K 19/0723 (2013.01); G06K 19/07354 (2013.01); G06K 19/07749 (2013.01); H01L 21/822 (2013.01); H01L 21/8234 (2013.01); H01L 27/1225 (2013.01); H01L 29/7869 (2013.01); H01L 29/78648 (2013.01); H01L 29/78696 (2013.01); G06K 2009/00959 (2013.01); H01L 21/8258 (2013.01); H01L 27/0688 (2013.01); H01L 27/088 (2013.01);
Abstract

To provide an authentication system and a semiconductor device utilizing the system. The semiconductor device includes a transmission/reception circuit, a control circuit, an analog-to-digital converter circuit, a memory device, and a fingerprint sensor. At least one of the control circuit, the analog-to-digital converter circuit, and the memory device includes a transistor including an oxide semiconductor in a channel formation region. The control circuit has a function of receiving an instruction signal from the outside of the semiconductor device through the transmission/reception circuit. The memory device has fingerprint data for comparison and confidential information. The control circuit has a function of comparing fingerprint data to be compared which is obtained by the fingerprint sensor and the fingerprint data for comparison. The control circuit has a function of transmitting the confidential information to the outside of the semiconductor device through the transmission/reception circuit when the fingerprint data to be compared and the fingerprint data for comparison match each other.

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